git: 312e1810cf34 - main - games/jchessboard: fix build with jdk21

The branch main has been updated by ronald:

URL: https://cgit.FreeBSD.org/ports/commit/?id=312e1810cf345847eb9519fcd709a78c500a227f

commit 312e1810cf345847eb9519fcd709a78c500a227f
Author:     Ronald Klop <ronald@FreeBSD.org>
AuthorDate: 2025-12-14 16:21:31 +0000
Commit:     Ronald Klop <ronald@FreeBSD.org>
CommitDate: 2025-12-29 18:54:23 +0000

    games/jchessboard: fix build with jdk21
    
    JDK21 is more strict in the encoding of source files. It does not ignore comments anymore.
    
    [javac] VirtualBoard.java:1174: error: unmappable character (0xF6) for encoding UTF-8
    [javac]             // utest.pgn: Qe4 oder Q3e4? (Q5e4 ist eigentlich nicht m?glich.)
    
    PR:     291663
    Approved-By:    maintainer timeout
---
 games/jchessboard/files/patch-build.xml | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/games/jchessboard/files/patch-build.xml b/games/jchessboard/files/patch-build.xml
new file mode 100644
index 000000000000..4938833a073e
--- /dev/null
+++ b/games/jchessboard/files/patch-build.xml
@@ -0,0 +1,11 @@
+--- build.xml.orig	2025-12-14 16:17:27 UTC
++++ build.xml
+@@ -3,7 +3,7 @@
+     <property name="runtime.jar" value="JChessBoard.jar"/>
+ 
+     <target name="compile">
+-        <javac srcdir="jchessboard" destdir="." includes="*.java"/>
++        <javac srcdir="jchessboard" destdir="." includes="*.java" encoding="ISO-8859-1"/>
+     </target>
+ 
+     <target name="jar" depends="compile">